I'm a documentary filmmaker and I am trying to build battery powered china lantern using an 13w Evolux SH LED array light bulb (http://eartheasy.com/store/proddetail.php?prod=EvoLuxSH). I'd like to use something like D-Cell rechargable batteries, possibly from a modified light bulb, although since this bulb is made for AC power, I may need some sort of power inverter. It accepts 90~277 V AC. Does anyone have any ideas about powering this with batteries? The objective is to have it suspended from a cable attached to a pole raised in the air so that we can have light for the camera as we film. Battery powered so we don't have to worry about trailing an extention cord.